I dont think that "If four points are collinear they are also coplaner," is the same thing as "If four points are coplaner they are also collinear,". The definition of collinear is at least three points on the same line. To define a plane is to have threenoncollinear points.
exactly nine planes! * * * * * I would have said 4 - corresponding to the four faces of a tetrahedron. Of course, non-collinear does not mean non-coplanar so all four points could be in the same single plane!
Points that lie on the same plane are coplanar. Generally, three points have to be coplanar, but more than that can be in any plane.
Any Euclidean plane has infinitely many points.
No. If the four points are coplanar, they determine only one plane!
There can be any number of points on a plane, or even on a line - and any number of lines on a plane.
all of them are collinear they lie in the same plane
If they lie in the same plane.
coplaner points- are points lying on his the same plane,.. solution: plane R contains XY XY contains X and Y...
lie on the same plane and are collinear
-lie in the same plane -are collinear
yes if it is a square of recatgle